code: def replace_unicode_whitespaces_with_ascii_whitespace(string):
      return " ".join(string.split())
  
file_path: NeuroNER/neuroner/utils_nlp.py
imports: import codecs
  import os
  import re
  import numpy
  from neuroner import utils
label_desc: Use image node_id 6 for calling a global function with example usage: replace_unicode_whitespaces_with_ascii_whitespace(string) and returns: str